Descriptions of the eggs of some southern Australian Geometridae (Lepidoptera)
Author
Young, Catherine J.
text
Zootaxa
2006
2006-08-14
1287
1
294
journal article
11755334
7778314F-E23A-4947-876A-9610E4C959A7
Paralaea chionopasta
McQuillan, Young & Richardson
(Figs 323–330)
Oviposition
15♀
Code nos.: G175, G176, G522536.
Batch size: 13.3 ± 1.7 range: 1–48 (n = 52)
Mean realised fecundity: 82.3 ± 9.0
Incubation time (days): 26–27 (on moistening)
Batch configuration and attachment
: Attached singly, short rows, groups, slightly shingled (Fig. 323).
Colour:
Pale bluish green, becoming darker and unmottled then transparent greyishbrown before eclosion (Fig. 323).
Size (mm):
(n=27) L=1.25 ± 0.07, W=0.90 ± 0.05, T=0.69 ± 0.06
Width/length: 0.72
No. of females: 3
Aeropylar opening size (m)
(n=6): L=0.95 ± 0.00
Relative aeropylar opening size: 0.9
Micropyles
: Indistinct (Figs 324 & 325)
No. of openings: 6
No. of cells in rosette: 10
No. of rows of cells in micropylar area: 4
Shape:
Narrow, elongated, bluntly ovoid, posterior pole subacute, wide (Figs 323, 326 & 327); polar profile circular (Fig. 324); wedgeshaped in profile; anterior pole truncated (Fig. 327), slightly angled to horizontal axis (Fig. 326).
Characteristics
: Egg marked on all surfaces by slightly convex hexagonal cells (Figs 326 & 327). Cell walls narrow, recessed (Fig. 328), except unelevated or recessed on lateral sides (Figs 329 & 330); micropylar cell walls narrow, slightly elevated; primary and secondary cell walls recessed (Fig. 325); cells in middle of top of egg slightly concave. Aeropyles irregularly shaped, unelevated, openings very small, inconspicuous (Figs 329 & 330), present on all surfaces apart from middle of top of cell. Micropyles slightly offcentred (Fig. 324). Anterior pole circumscribed with raised rim (Fig. 326). Chorion rough, pitted, wrinkled (Figs 328–330).